Long-haired dogs are not better for allergies than short-haired dogs. In fact, some studies have shown that long-haired dogs may actually be worse for allergies than short-haired dogs. This is because long-haired dogs tend to shed more hair, which can lead to more pet dander in the air. Pet dander is one of the main triggers of pet allergies.
Additionally, long-haired dogs may be more likely to carry allergens on their fur, as they can pick up more dirt and debris from the environment. These allergens can then be transferred to people who come into contact with the dog.